Patent US2999793A successfully refreshed from Google Patents.
US2999793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagnostic preparation and process for the determination of serum alkaline phosphatase
Assignee: Warner Lambert Co LLC
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Filing: 1957-07-11
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Granted: 1961-09-12
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Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Babson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:10
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/42; C12Q2334/00; C12Q2334/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A DRY PREPARATION FOR USE IN THE DETERMINATION OF SERUM ALKALINE PHOSPHATASE WHICH COMPRISES ABOUT 1 TO ABOUT 3 PERCENT BY WEIGHT OF SODIUM PHENOLPHTHALEIN PHOSPHATE, UP TO ABOUT 0.1 PERCENT BY WEIGHT OF A MAGNESIUM SALT AND TRIS(HYDROXYMETHYL)-AMINOMETHANE IN AN AMOUNT SUFFICIENT TO MAINTAIN THE SERUM PH IN A RANGE OF ABOUT 9 TO ABOUT 11.
Claim 2
Dependent Claim
57 words
A DRY PREPARATION FOR USE IN THE DETERMINATION OF SERUM ALKALINE PHOSPHATASE WHICH COMPRISES ABOUT 1 TO ABOUT 3 PERCENT BY WEIGHT OF SODIUM PHENOLPHTHALEIN PHOSPHATE, UP TO ABOUT 0.1 PERCENT BY WEIGHT OF A MAGNESIUM SALT AND TRIS(HYDROXYMETHYL)-AMINOMETHANE IN AN AMOUNT SUFFICIENT TO MAINTAIN THE SERUM PH IN A RANGE OF ABOUT 9 TO ABOUT 11.
References Cited (Backward Citations)
US2359052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |